Anti-collision device of ultra-fast cooling equipment of H-shaped steel production line

Abstract

The utility model discloses a kind of H-shaped steel production line superfast cooling equipment anti-collision device, belong to section steel production equipment technical field.This device is set up portal type anti-collision frame on the roller way before superfast cooling equipment, and its left, right, top column inner side is equipped with guiding device.Guiding device is constituted by guide wheel, guide wheel frame, spring, guide column and the like component.Innovative point is in at:First, the roller face length of anti-collision frame left, right, top column inner side guide wheel is respectively identical with the actual width of H-shaped steel corresponding face, realizes full-width contact guiding;Second, the rigidity coefficient of spring in device and the linear density of H-shaped steel conveyed are matched and selected.This collaborative design makes that device can not only effectively correct and buffer through full-area contact when facing left and right deviation or head lifting in H-shaped steel conveying, avoid equipment collision, significantly reduce unplanned shutdown, improve the stability of production line and equipment service life.

Description

Technical Field

[0001] This utility model belongs to the technical field of steel production equipment, specifically relating to an anti-collision device for ultra-fast cooling equipment in an H-beam steel production line. Background Technology

[0002] After rolling, H-beams are prone to warping at both ends or shifting to the left or right. H-beam production lines are equipped with ultra-fast cooling devices after the finishing mill for online cooling of the rolled H-beams. This equipment mainly includes cooling nozzles, water distribution pipes, a lateral movement mechanism, water supply lines, and splash guards. During H-beam production, because the cooling water pipes and nozzles are close to the rolled steel sections, the head of the section is prone to colliding with them, leading to unplanned downtime. Utility Model Content

[0003] The purpose of this invention is to solve the above problems and provide an anti-collision device for ultra-fast cooling equipment in H-beam steel production lines.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A collision prevention device for an ultra-fast cooling equipment in an H-beam steel production line is provided, wherein a gantry-shaped collision prevention frame is installed on the roller conveyor in front of the ultra-fast cooling equipment, and guide devices are provided on the left, right, and top inner sidewalls of the collision prevention frame; The guiding device includes a guide wheel, a guide wheel frame, two springs, two guide posts, two nuts, two fixed posts, and two adjusting blocks. The two adjusting blocks are movably inserted into the anti-collision frame. The two fixed posts are respectively fixedly installed on the outer side wall of the anti-collision frame. The two nuts are respectively screwed onto the two fixed posts and located outside the adjusting blocks. A guide hole is opened in the middle of the inner side of the adjusting block. The two guide posts are slidably inserted into the two guide holes. The two springs are respectively sleeved on the two guide posts, with one end of the spring abutting against the adjusting block and the other end abutting against the guide wheel frame. The bottom surface of the guide wheel frame is fixedly connected to the ends of the two guide posts on both sides. The guide wheel is rotatably installed at the front end of the guide wheel frame through a rotating shaft. The guide wheels on the inner side walls of the left, right, and top posts of the anti-collision frame correspond to the left, right, and top surfaces of the H-beam, respectively. The roller surface lengths of the guide wheels on the inner walls of the left, right, and top columns of the anti-collision frame are the same as the actual widths of the left, right, and top surfaces of the H-beam, respectively, to achieve full-width contact guidance. The stiffness coefficient of the spring is selected based on the linear density of the H-beam being transported: for H-beams with a linear density ≤ 50 kg / m, the spring stiffness coefficient is 50 N / mm; for H-beams with a linear density > 50 kg / m, the spring stiffness coefficient is 100 N / mm.

[0005] Furthermore, the surface of the guide post is chrome-plated.

[0006] Furthermore, the rim of the guide wheel is drum-shaped.

[0007] Furthermore, the nut and the fixing post are connected by a trapezoidal thread.

[0008] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model uses guide wheels on the left, right, and top inner sides of the anti-collision frame to correct the left and right deviation or head tilting of the H-beam during the conveying process, ensuring that the H-beam enters the ultra-fast cooling equipment in the correct posture, avoiding collisions with cooling water pipes and nozzles, and reducing unplanned downtime. 2. This utility model, through the synergistic design of "full-width guide wheels" and "spring stiffness with matching linear density," constitutes an optimized system for anti-collision correction of H-beams. The full-width guide wheels ensure the uniform distribution of correction force, while the matching spring stiffness provides precise force control. Together, they achieve efficient and gentle correction of H-beam offset and warping, with a high success rate and no damage to the equipment or product itself.

[0009] 3. The parameters of the spring and guide column of the buffer system of this utility model have been specially designed and selected, and the impact force buffering efficiency exceeds 70%, which significantly reduces the operating load of the equipment and extends the service life of key components.

[0010] 4. This utility model uses nuts and adjusting blocks for adjustment, and combined with a clear stiffness selection guide, it enables the device to quickly and accurately adapt to the production of H-beams of different specifications, with short adjustment time, high positional accuracy, and strong versatility. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a schematic diagram of the guide post connection of this utility model; In the diagram: 1. H-beam; 2. Roller conveyor; 3. Anti-collision frame; 4. Guide wheel; 5. Guide wheel frame; 6. Spring; 7. Guide column; 8. Nut; 9. Cooling water pipe and nozzle; 10. Fixed column; 11. Adjusting block; 12. Guide hole. Detailed Implementation

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example

[0013] like Figure 1-3As shown, an anti-collision device for an ultra-fast cooling equipment in an H-beam steel production line is provided. A gantry-shaped anti-collision frame 3 is installed on the roller conveyor 2 in front of the ultra-fast cooling equipment. Guide devices are provided on the left, right, and top inner sidewalls of the anti-collision frame 3. The guiding device includes a guide wheel 4, a guide wheel frame 5, two springs 6, two guide posts 7, two nuts 8, two fixed posts 10, and two adjusting blocks 11. The two adjusting blocks 11 are movably inserted into the anti-collision frame 3. The two fixed posts 10 are respectively fixedly installed on the outer side wall of the anti-collision frame 3. The two nuts 8 are respectively screwed onto the two fixed posts 10 through trapezoidal threads and are located outside the adjusting blocks 11. A guide hole 12 is opened in the middle of the inner side of the adjusting block 11. The surfaces of the two guide posts 7 are chrome-plated. The two springs 6 are slidably inserted into the two guide holes 12 respectively. The two springs 6 are respectively sleeved on the two guide posts 7, and one end of the spring 6 abuts against the adjusting block 11, and the other end abuts against the guide wheel frame 5. The bottom surface of the guide wheel frame 5 is fixedly connected to the ends of the two guide posts 7 respectively. The guide wheel 4 is rotatably set at the front end of the guide wheel frame 5 through the rotating shaft. The guide wheels 4 on the inner side walls of the left, right and top posts of the anti-collision frame 3 correspond to the left, right and top surfaces of the H-beam 1 respectively, and the rim of the guide wheel 4 is drum-shaped. The roller surface lengths of the guide wheels 4 on the inner sidewalls of the left, right, and top columns of the anti-collision frame 3 are the same as the actual widths of the left, right, and top surfaces of the H-beam 1, respectively, to achieve full-width contact guidance. The stiffness coefficient of the spring 6 is selected based on the linear density of the H-beam 1 being transported: for H-beams with a linear density ≤ 50 kg / m, the spring stiffness coefficient is 50 N / mm; for H-beams with a linear density > 50 kg / m, the spring stiffness coefficient is 100 N / mm.

[0014] In this embodiment, the core lies in determining two key design parameters: First, the dimensions of the guide wheels are determined. For an H-beam of H200×200×8×12, its flange width is 200mm. Therefore, the roll surface length of the left and right guide wheels 4 is also precisely set to 200mm. The length of the top guide wheel is consistent with the width of the web of the top surface of the H-beam. This "surface contact" guide significantly improves stability compared to ordinary "point or line contact" guide wheels.

[0015] Second, the selection of spring stiffness. Calculations show that the linear density of H-beam 1 (H200×200×8×12) is approximately 55 kg / m, falling into the heavy-duty category. Therefore, in this embodiment, all springs 6 are stainless steel compression springs with a stiffness coefficient of 100 N / mm. This selection ensures that when H-beam 1 deviates by 50 mm at a speed of 2 m / s, the guide wheel system can provide sufficient reaction force to reset it, while controlling the peak impact force below 15 kN.

[0016] Before use, adjust nut 8 to guide wheel 4 to the predetermined position according to the marked position of H-beam specifications (maintaining a gap of 2-5mm with normal H-beam).

[0017] In actual production line testing, the device demonstrated outstanding performance: Correction performance: The correction success rate reaches 100% for 10 man-made ±50mm offsets or 100mm warping, completely avoiding collisions with ultra-fast cooling equipment.

[0018] Buffering effect: The maximum impact force measured by the force sensor is only 14.8kN, which is 70.4% higher than the 50kN without buffer.

[0019] Durability and adaptability: No significant wear after 500 hours of continuous operation. When changing to produce H150×150 specifications, it only takes 5 minutes to adjust nut 8 and replace it with a spring with a stiffness of 50N / mm (because its linear density is about 32kg / m) for quick adaptation.

[0020] The experimental data shows that this device can effectively prevent H-beams from colliding with ultra-fast cooling equipment, thereby improving production line efficiency and equipment reliability. Example

[0021] This embodiment is further optimized by chrome-plating the surface of the guide post 7 to reduce frictional resistance when sliding in the guide hole 12, making the cushioning smoother. The guide wheel 4 has a drum-shaped rim design, which allows it to have a slight self-aligning capability when in contact with the H-beam, further protecting the edge of the H-beam.

[0022] Before producing H-beam 1, the operator needs to adjust the equipment: Parameter confirmation and selection: First, calculate or consult the linear density of H-beam 1 according to its specifications, select a spring 6 with appropriate stiffness, pull the guide wheel frame 5 inward, pull the guide post 7 out of the guide hole 12, put the spring 6 on the guide post 7, and then insert the guide post 7 into the guide hole 12. Position marking: On roller conveyor 2, corresponding to the ideal position when H-beam 1 is passing normally, mark the final position that guide wheel 4 should reach on the left, right and top columns of anti-collision frame 3 respectively.

[0023] Precise Adjustment: Use a tool to tighten the nuts 8 in the left, right, and top directions respectively. Tightening the nuts 8 will push the adjusting block 11 inwards precisely. The adjusting block 11 transmits force to the guide wheel frame 5 through the spring 6 on its inner side, thereby pushing the entire guide wheel 4 assembly inwards. This process continues until the drum-shaped roller surface of the guide wheel 4 is aligned with the marked position, at which point a safe gap of 2-5mm is maintained with the corresponding surface of the H-beam 1 in the ideal state. Due to the use of a trapezoidal thread, the nuts 8 can reliably self-lock after adjustment, preventing loosening under vibration and ensuring the stability of the set gap.

[0024] After being precision rolled, H-beam 1 is conveyed along roller conveyor 2 and passes through anti-collision frame 3. To handle left and right deviations: When the H-beam 1 shifts, its left and right flanges will first contact the guide wheels 4 on the corresponding sides. Since the length of the guide wheels 4 is exactly the same as the width of the H-beam flanges, the impact force is evenly distributed across the entire flange contact surface, avoiding stress concentration and surface damage to the steel section.

[0025] The impact force is transmitted to the two guide posts 7 through the guide wheel 4 and the guide wheel bracket 5. The guide posts 7 slide smoothly within the guide hole 12 thanks to the low friction caused by the chrome-plated surface and the compression of the spring 6.

[0026] At this point, spring 6, specially selected based on linear density, begins to play a crucial role: it is not a rigid block, but rather absorbs the kinetic energy of the H-beam 1 through controlled deformation, transforming the enormous impact force into a gentle buffer. Under the restoring force of spring 6, the H-beam 1 is smoothly pushed back to its center position. Throughout the process, the buffer system reduces the peak impact force from approximately 50kN without buffering to below 15kN.

[0027] Addressing head tilting: When the head of the H-beam 1 tilts upwards, its top surface impacts the top guide wheel 4. The guide wheel 4, which extends to the top length, ensures full contact with the web.

[0028] Similarly, the impact force is absorbed by the spring 6 through the guide device at the top. Since the H-beam 1 is still in a high-temperature plastic state at this time, under continuous pressure, the raised part is gently flattened and restored to its normal straight shape.

[0029] Once the H-beam 1 passes the current contact point of the guide wheel 4, the force acting on it disappears. The compressed spring 6 quickly releases its energy, pushing the guide wheel frame 5 and guide post 7 back to their initial preset gap positions, preparing for the correction of any possible offset or tilting.

[0030] After being corrected and restored to its proper position and shape, the H-beam 1 smoothly enters the subsequent ultra-fast cooling equipment. Because its posture has been corrected, collisions with precision components such as cooling water pipes and nozzles 9 are completely avoided, ensuring the continuous and stable operation of the production line.

[0031] When the production line needs to switch to producing H-beams of a different specification (e.g., H150×150), the operator only needs to: Based on the new specification's linear density (e.g., approximately 32 kg / m), select spring 6 with a stiffness coefficient of 50 N / mm.

[0032] Unscrew nut 8, remove guide wheel 4 and guide wheel bracket 5, put spring 6 on guide post 7, insert it into guide hole 12, screw on nut 8, adjust the position of guide wheel 4 assembly, and then readjust according to the new marked position.

[0033] The entire process can be completed within 5 minutes, fully demonstrating the excellent adaptability and efficiency of this utility model.

Claims

1. A collision prevention device for ultra-fast cooling equipment in an H-beam steel production line, characterized in that: A gantry-type anti-collision frame (3) is installed on the roller conveyor (2) in front of the ultra-fast cooling equipment. The left, right and top columns of the anti-collision frame (3) are equipped with guide devices. The guiding device includes a guide wheel (4), a guide wheel frame (5), two springs (6), two guide posts (7), two nuts (8), two fixed posts (10), and two adjusting blocks (11). The two adjusting blocks (11) are movably inserted into the anti-collision frame (3). The two fixed posts (10) are respectively fixed on the outer side wall of the anti-collision frame (3). The two nuts (8) are respectively screwed onto the two fixed posts (10) and located outside the adjusting blocks (11). A guide hole (12) is opened in the middle of the inner side of the adjusting block (11). The guide post (7) is slidably inserted into the two guide holes (12). The two springs (6) are respectively sleeved on the two guide posts (7). One end of the spring (6) abuts against the adjusting block (11) and the other end abuts against the guide wheel frame (5). The bottom sides of the guide wheel frame (5) are fixedly connected to the ends of the two guide posts (7). The guide wheel (4) is rotatably set at the front end of the guide wheel frame (5) through the rotating shaft. The guide wheels (4) on the inner side walls of the left, right and top columns of the anti-collision frame (3) correspond to the left, right and top surfaces of the H-beam (1) respectively. The roller surface lengths of the guide wheels (4) on the inner side walls of the left, right, and top columns of the anti-collision frame (3) are the same as the actual widths of the left, right, and top surfaces of the H-beam (1), respectively, so as to achieve full-width contact guidance. The stiffness coefficient of the spring (6) is matched and selected according to the linear density of the H-beam (1) being transported: for H-beams with a linear density ≤ 50 kg / m, the spring stiffness coefficient is 50 N / mm; for H-beams with a linear density > 50 kg / m, the spring stiffness coefficient is 100 N / mm.

2. The anti-collision device for ultra-fast cooling equipment in an H-beam steel production line according to claim 1, characterized in that, The surface of the guide post (7) is chrome plated.

3. The anti-collision device for ultra-fast cooling equipment in an H-beam steel production line according to claim 1, characterized in that, The guide wheel (4) has a drum-shaped rim.

4. The anti-collision device for ultra-fast cooling equipment in an H-beam steel production line according to claim 1, characterized in that, The nut (8) and the fixing post (10) are connected by a trapezoidal thread.

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